RAPID CITY, S.D. - Federal and state agencies have imposed new fire restrictions for the Black Hills National Forest in South Dakota and Wyoming because of record-breaking high temperatures and increasing fire activity throughout the region.

"We have to do what we can to stop human-caused fires," said Craig Bobzien, a spokesman for the group that includes Black Hills National Forest, Mount Rushmore National Memorial, Wind Cave National Park, Devils Tower National Monument, Jewel Cave National Monument and Custer State Park.

The restrictions include:

- Building, maintaining, attending or using a fire, campfire, or a coal or wood stove fire is prohibited on all public lands, even in developed campgrounds.

- Petroleum-fueled stoves, lanterns or heating devices may be used if they meet the fire underwriters specifications for safety.

- Charcoal grills may be used within designated picnic areas or campgrounds within Black Hills National Forest.

- Smoking is prohibited except in enclosed vehicles at Mount Rushmore National Memorial. Smoking elsewhere is prohibited except within an enclosed vehicle or building, a developed recreation site or while stopped in an area at least 3 feet in diameter that has no flammable materials.

- Internal or external combustion engines including ATVs and motorcycles must have approved spark arresters.

- Welding or operating an acetylene or other torch with open flame is prohibited.

Large fires have occurred in both northeast Wyoming and southwest South Dakota this summer.